Finding the Fourth Proportional to 3,478,456.20, 5,217,684.30 and 2,202,997.80
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Solution
The fourth proportional to 3,478,456.20, 5,217,684.30 and 2,202,997.80 is: 3,304,496.70
Step by Step Solution
- Step 1: Write the proportion equation
3,478,456.20 : 5,217,684.30 = 2,202,997.80 : x - Step 2: Convert to fraction form
3,478,456.20/5,217,684.30 = 2,202,997.80/x - Step 3: Cross multiply
3,478,456.20x = 5,217,684.30 × 2,202,997.80 - Step 4: Simplify right side
3,478,456.20x = 11,494,547,033,994.54 - Step 5: Solve for x
x = 11,494,547,033,994.54/3,478,456.20 - Step 6: Final answer
x = 3,304,496.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.